{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ams80805cxad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMS80805CXAD — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e is a genuine OEM primary high-limit switch with a \u003cstrong\u003e150°F\u003c\/strong\u003e trip rating for the \u003cstrong\u003eAMS80805CXAD\u003c\/strong\u003e 80% AFUE gas furnace and compatible Goodman\/Amana models. Mounted on the heat-exchanger bulkhead, it monitors supply-air temperature and shuts off the burners if the furnace overheats — typically due to restricted airflow, a dirty filter, or blower failure. This auto-reset control restores heating once temperatures return to a safe range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit \/ auto-reset thermal switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eFunction: Opens burner circuit on over-temp\u003c\/li\u003e\n\u003cli\u003eFits: AMS80805CXAD and related 80% Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eTerminals: Quick-connect spade\u003c\/li\u003e\n\u003cli\u003eOEM Part: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe trip setpoint must match the furnace design. The \u003cstrong\u003eOEM Goodman 20162903\u003c\/strong\u003e is calibrated to 150°F exactly as engineered. Generic limits with different setpoints or mounting profiles can cause nuisance lockouts or, worse, fail to protect the heat exchanger. For this safety control, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, unplug the leads, remove the two mounting screws, and install the replacement flush against the bulkhead. Roughly 10–15 minutes. If the limit was tripping, address the airflow cause before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057704386931,"sku":"GOODMAN-7023","price":26.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ams80805cxad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}